drm/amdgpu: disable hw semaphore with scheduler

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian K?nig <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c

@@ -165,7 +165,7 @@ int amdgpu_sync_rings(struct amdgpu_sync *sync,
 			return -EINVAL;
 		}
 
-		if (count >= AMDGPU_NUM_SYNCS) {
+		if (amdgpu_enable_scheduler || (count >= AMDGPU_NUM_SYNCS)) {
 			/* not enough room, wait manually */
 			r = amdgpu_fence_wait(fence, false);
 			if (r)